I want to embark on this but I have some un-answered questions:

- Why are there 3 connections on the variable resistor? Shouldn't there only be two?
- Why is there no range listed for the variable resistor? It just says 20k ohm but shouldn't it be xxx - 20k ohm?
- And then, what knob settings map to what resistance settings? Or do you have to measure the pot with a multimeter to find out what setting it is at?
- Do I need to solder the connections or is there a type of spade connector that fits the pot?
- Which side of the thermistor do I wire the resistor to? (pretty sure it doesn't matter)

Hopeful to get a response but if not I'll work through these problems myself and follow up either later this fall or next spring.